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import * as colors from 'colors';
import * as util from 'util';
type ConsoleType = "out" | "info" | "error";
interface ConsoleTypeData {
[text: string]: string | undefined;
}
export default class Log {
private __name: string | undefined;
private types: ConsoleTypeData = {
"out": "white",
"info": "cyan",
"error": "red",
}
constructor(name?: string) {
this.__name = name;
}
private get date(): string {
return colors.grey(`[${ new Date().toISOString() }] `);
}
private get name(): string {
return this.__name
? `{${ this.__name.toUpperCase() }} `
: '';
}
private format(...args: any[]) {
return args.map(o => {
if (o instanceof Error) {
return [
"",
'-------------------------------------------------------',
`${o.name} - ${o.message}`,
'-------------------------------------------------------',
`${o.stack || 'NO STACK'}`,
""
].map(l => colors.red(l)).join('\n');
} else if (typeof o === 'string') {
return o;
} else {
return util.inspect(o, { depth: 20 });
}
}).join(' ');
}
print(type: ConsoleType): (...args: any[]) => void {
return (...args) => {
const output = this.format(...args);
const color = this.types[type];
for (const line of output.split('\n')) {
process.stdout.write(`${this.date}${this.name}${ color ? colors[color](line) : line }\n`);
}
};
}
static attach(name?: string) {
const logger = new Log(name);
console.log = logger.print("out");
console.info = logger.print("info");
console.error = logger.print("error");
}
}
export const c = {
__log: (args: any[], opts: {
color?: colors.Color,
colors?: boolean,
} = {}) => {
const inspectOpts = (opts.colors !== undefined)
? { depth: 20, compact: false, breakLength: Infinity, colors: opts.colors }
: { depth: 20, compact: false, breakLength: Infinity, colors: true }
;
const s = args.map(o => {
if (o instanceof Error) {
// return colors.red(`${o.name}: ${o.message}\n${o.stack}`);
return (o.stack || `${o.name}: ${o.message}`)
.split('\n')
.map(x => colors.red(x))
.join('\n')
;
} else if (typeof o === 'string') {
return o;
} else {
return util.inspect(o, inspectOpts);
}
}).join(' ');
console.log(opts.color ? opts.color(s) : s);
},
log: (...args: any[]) => {
c.__log(args);
},
debug: (...args: any[]) => {
c.__log(args, { color: colors.gray, colors: false });
},
success: (...args: any[]) => {
c.__log(args, { color: colors.green });
},
error: (...args: any[]) => {
c.__log(args, { color: colors.red });
},
info: (...args: any[]) => {
c.__log(args, { color: colors.cyan });
},
introspect: (...args: any[]) => {
c.__log(args.map(a => [
a,
typeof a,
a.constructor.name,
]));
},
}
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